MARSHALL WACE, LLP
Position in CRL — Charles River Laboratories International, Inc.
CIK 1318757
LONDON, X0
Position in CRL
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$25,814,797
+$1,040,779 QoQ
Shares Held
149,651
+20.5% QoQ
Ownership
0.311%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
22 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 100.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CRL Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026MARSHALL WACE, LLP holds $531,017,373 across 25 Diagnostics & Research names. CRL ranks #7 (4.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
477,250 | $234,582,691 | |
| 2 | WAT |
Waters Corp /De/
|
226,886 | $67,566,650 | |
| 3 | ILMN |
Illumina, Inc.
|
504,363 | $62,167,783 | |
| 4 | DGX |
Quest Diagnostics Inc
|
200,278 | $39,250,481 | |
| 5 | QGEN |
Qiagen N.V.
|
789,998 | $31,631,519 | |
| 6 | IDXX |
Idexx Laboratories Inc /De
|
49,295 | $27,698,367 | |
| 7 | CRL |
Charles River Laboratories International, Inc.
This page
|
149,651 | $25,814,797 | |
| 8 | NTRA |
Natera, Inc.
|
53,702 | $10,739,862 |
All Filings in CRL
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22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $25,814,797 | 149,651 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $24,774,018 | 124,193 | Shares | Other | 2026-02-13 | |
| 2025-09-30 | $21,608,689 | 138,110 | Shares | Other | 2025-11-13 | |
| 2025-06-30 | $2,135,142 | 14,072 | Shares | Other | 2025-08-13 | |
| 2025-03-31 | $5,709,824 | 37,934 | Shares | Other | 2025-05-15 | |
| 2024-12-31 | $3,988,836 | 21,608 | Shares | Other | 2025-02-13 | |
| 2024-09-30 | $60,875,350 | 309,059 | Shares | Other | 2024-11-14 | |
| 2024-06-30 | $170,615,454 | 825,905 | Shares | Other | 2024-08-14 | |
| 2024-03-31 | $179,598,936 | 662,849 | Shares | Other | 2024-05-15 | |
| 2023-09-30 | $23,807,454 | 121,479 | Shares | Other | 2023-11-14 | |
| 2023-06-30 | $89,677,091 | 426,526 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $192,720,742 | 954,914 | Shares | Other | 2023-05-15 | |
| 2022-12-31 | $190,613,035 | 874,773 | Shares | Other | 2023-02-14 | |
| 2022-09-30 | $109,357,430 | 555,678 | Shares | Other | 2022-11-14 | |
| 2022-06-30 | $72,815,274 | 340,306 | Shares | Other | 2022-08-15 | |
| 2022-03-31 | $49,086,770 | 172,859 | Shares | Other | 2022-05-16 | |
| 2021-12-31 | $171,357,659 | 454,795 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $124,847,943 | 302,537 | Shares | Sole | 2021-11-15 | |
| 2021-03-31 | $265,790,340 | 917,056 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $213,109,092 | 852,914 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $184,166,576 | 813,277 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $15,943,958 | 91,448 | Shares | Sole | 2020-08-13 | |
| No filing history on record for this holder in this stock. | ||||||